diff options
| -rw-r--r-- | src/CMakeLists.txt | 6 | ||||
| -rw-r--r-- | src/common/file_util.h | 2 | ||||
| -rw-r--r-- | src/common/misc.cpp | 15 |
3 files changed, 17 insertions, 6 deletions
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt index 71efbb40d..29c6ffc67 100644 --- a/src/CMakeLists.txt +++ b/src/CMakeLists.txt @@ -32,7 +32,6 @@ if (MSVC) # /Zc:inline - Let codegen omit inline functions in object files # /Zc:throwingNew - Let codegen assume `operator new` (without std::nothrow) will never return null add_compile_options( - /W3 /MP /Zi /Zo @@ -43,6 +42,10 @@ if (MSVC) /Zc:externConstexpr /Zc:inline /Zc:throwingNew + + # Warnings + /W3 + /we4834 # Discarding return value of function with 'nodiscard' attribute ) # /GS- - No stack buffer overflow checks @@ -56,6 +59,7 @@ else() -Werror=implicit-fallthrough -Werror=missing-declarations -Werror=reorder + -Werror=unused-result -Wextra -Wmissing-declarations -Wno-attributes diff --git a/src/common/file_util.h b/src/common/file_util.h index 8b587320f..840cde2a6 100644 --- a/src/common/file_util.h +++ b/src/common/file_util.h @@ -232,7 +232,7 @@ public: void Swap(IOFile& other) noexcept; - [[nodiscard]] bool Open(const std::string& filename, const char openmode[], int flags = 0); + bool Open(const std::string& filename, const char openmode[], int flags = 0); bool Close(); template <typename T> diff --git a/src/common/misc.cpp b/src/common/misc.cpp index 68cb86cd1..1d5393597 100644 --- a/src/common/misc.cpp +++ b/src/common/misc.cpp @@ -16,16 +16,23 @@ // Call directly after the command or use the error num. // This function might change the error code. std::string GetLastErrorMsg() { - static const std::size_t buff_size = 255; + static constexpr std::size_t buff_size = 255; char err_str[buff_size]; #ifdef _WIN32 FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM, nullptr, GetLastError(), MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), err_str, buff_size, nullptr); + return std::string(err_str, buff_size); +#elif defined(__GLIBC__) && (_GNU_SOURCE || (_POSIX_C_SOURCE < 200112L && _XOPEN_SOURCE < 600)) + // Thread safe (GNU-specific) + const char* str = strerror_r(errno, err_str, buff_size); + return std::string(str); #else // Thread safe (XSI-compliant) - strerror_r(errno, err_str, buff_size); + const int success = strerror_r(errno, err_str, buff_size); + if (success != 0) { + return {}; + } + return std::string(err_str); #endif - - return std::string(err_str, buff_size); } |